Finding the Fourth Proportional to 3,889,997,175.96, 5,368,197,835.97 and 2,105,850,571.23
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Solution
The fourth proportional to 3,889,997,175.96, 5,368,197,835.97 and 2,105,850,571.23 is: 2,906,074,726.54
Step by Step Solution
- Step 1: Write the proportion equation
3,889,997,175.96 : 5,368,197,835.97 = 2,105,850,571.23 : x - Step 2: Convert to fraction form
3,889,997,175.96/5,368,197,835.97 = 2,105,850,571.23/x - Step 3: Cross multiply
3,889,997,175.96x = 5,368,197,835.97 × 2,105,850,571.23 - Step 4: Simplify right side
3,889,997,175.96x = 11,304,622,479,370,409,984 - Step 5: Solve for x
x = 11,304,622,479,370,409,984/3,889,997,175.96 - Step 6: Final answer
x = 2,906,074,726.54
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.